机载前视风切变雷达回波信号的一种仿真方法

Simulation Methodof Airborne Forward-looking Windshear Radar Echo Signals

风切变是造成目前空难事故的主要原因。针对对风切变研究的必要性,提出了一种机载前视风切变雷达回波信号模型和仿真方法,该模型表示了飞机在降落或起飞阶段中低空暴流雨回波和地杂波的回波谱特征,详细介绍了仿真方法的原理和仿真流程,给出了雨回波和地杂波的仿真结果,仿真结果表明的仿真方法合理、结果正确。

Windshear is currently the main reason for the crash accident. Considering the necessity of windshear study, a model and a simulation method of echo signal of airborne forward-looking windshear radar was proposed. The model could be expressed as the spectral characteristics of microburst and clutter when the aircraft was in the stage of landing or taking off. The principles of methods and simulation process were introduced in detail. The simulation results of mieroburst and clutter were given. The simulation results show that the simulation method is reasonable and the simulated echo data is correct.